Search Results
Results 351 - 400 of 2608
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Hong Seung Woo - - 2012
To evaluate the effect of the Honan intraocular pressure reducer (HIPR) on vitreous reflux during intravitreal (IVT) injection. Prospective, comparative, controlled, investigator-blinded, randomized clinical study. Sixty eyes of 60 patients who underwent IVT injection were allocated into 2 groups with or without using the HIPR. Vitreous reflux was estimated by ...
Chandra Abhijit - - 2012
Studies evaluating the human pylorus as a sphincter are scanty and contradictory. Recently, we have shown technical feasibility of transposing the human pylorus for end-stage fecal incontinence. This unique cohort of patients provided us an opportunity to study the sphincter properties of the pylorus in its ectopic position. Antro-pylorus transposition ...
Shin Myoung-Keun - - 2012
The goal of this study was to determine the optimal target-controlled concentration of remifentanil combined with desflurane, by using a more widely and decreasing end-tidal concentration of desflurane. Ninety ASA I patients, who underwent general anesthesia for elective orthopedic or extremity surgeries, were registered and randomly allocated to receive either ...
Yamauchi Liria Yuri - - 2012
To describe noninvasive positive-pressure ventilation use in intensive care unit clinical practice, factors associated with NPPV failure and the associated prognosis. A prospective cohort study. Medical disorders (59%) and elective surgery (21%) were the main causes for admission to the intensive care unit. The main indications for the initiation of ...
Barzilay Joshua I - - 2012
The Action to Control Cardiovascular Risk in Diabetes (ACCORD) Blood Pressure Trial reported no differences in most cardiovascular disease (CVD) outcomes between intensive and standard blood pressure therapy in individuals with diabetes mellitus (DM) and hypertension. Many such individuals are centrally obese. Here we evaluate whether the trial outcomes varied ...
Chervin Ronald D - - 2012
Esophageal pressure monitoring during polysomnography in children offers a gold-standard, “preferred” assessment for work of breathing, but is not commonly used in part because prospective data on incremental clinical utility are scarce. We compared a standard pediatric apnea/hypopnea index to quantitative esophageal pressures as predictors of apnea-related neurobehavioral morbidity and ...
Smischney Nathan J - - 2012
Critically ill patients may require emergent intubations, and the use of some induction agents can lead to undesirable effects on hemodynamics. The use of "ketofol" (ketamine/propofol admixture) may allow for improved hemodynamic control. The primary aim of this study was to assess the hemodynamic effects of "ketofol" in a fixed-dose ...
Campbell Roderick - - 2012
The aim of this study was to validate a calculation of pulse rate (PR) divided by pulse pressure (pulse rate over pressure evaluation [ROPE] index) as a method of predicting early hemorrhagic compensation in healthy patients donating blood. The ROPE index calculations were compared with shock index (PR divided by ...
Hunt Leanne - - 2012
Intra-abdominal pressure (IAP) measurement has become an important tool in the assessment of critically ill patients. The World Society of the Abdominal Compartment Syndrome consensus guidelines recommend using a maximum volume of 25 mL of sterile saline instilled into the bladder for intermittent IAP measurements. It is postulated that the ...
Breaux-Shropshire Tonya L - - 2012
Uncontrolled blood pressure remains a major public health issue. Medication adherence is a key factor in blood pressure management; however, adherence behavior is not clearly understood and the most significant factors contributing to poor medication adherence and blood pressure control are unknown. The purpose of this study was to determine ...
Sunder Rani A RA Department of Anaesthesiology and Intensive Care, Rajendra Prasad Institute of Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, - - 2012
Supraglottic airway devices play an important role in ophthalmic surgery. The flexible laryngeal mask airway (LMA™) is generally the preferred airway device. However, there are no studies comparing it with the Cobra perilaryngeal airway (CobraPLA™) in pediatric ophthalmic procedures. To analyze the intraoperative device stability and ability to maintain normocarbia ...
Ahmed Humera H Cardiac Arrhythmia Service of Mount Sinai School of Medicine, One Gustave L. Levy Place, New York, NY 10029, - - 2012
This study sought to assess whether renal sympathetic denervation (RSDN) can be achieved using an off-the-shelf saline-irrigated radiofrequency ablation (RFA) catheter typically employed for cardiac tissue ablation. RSDN using a specialized solid-tip RFA catheter has recently been demonstrated to safely reduce systemic blood pressure in patients with refractory hypertension. For ...
Lewington Sarah S Clinical Trial Service Unit and Epidemiological Studies Unit, University of Oxford, UK. - - 2012
Mean blood pressure varies moderately with outdoor air temperature in many western populations. Substantial uncertainty exists, however, about the strength of the relationship in other populations and its relevance to age, adiposity, medical treatment, climate and housing conditions. To investigate the relationship of blood pressure with season and outdoor temperature, ...
Kwak Hyun Jeong - - 2012
BACKGROUND: Positive end-expiratory pressure (PEEP) can improve respiratory mechanics during pneumoperitoneum, but may influence intracranial and cerebral perfusion pressure. This study investigated the changes in hemodynamic parameters and cerebral oxygen saturation (rSO(2)) associated with 10 cmH(2)O PEEP during pneumoperitoneum while undergoing laparoscopic cholecystectomy under propofol anesthesia. METHODS: Sixty patients aged 18-60 years ...
Causey Marlin Wayne - - 2012
INTRODUCTION: Combat Gauze (CG) is currently the most widely used hemostatic dressing in combat. The testing of CG was initially performed in healthy and physiologically normal animals. The goal this study was to assess the efficacy in a model of severe acidosis and coagulopathy. METHODS: To obtain an acidotic and ...
de Morais Hécio Henrique Araújo - - 2012
OBJECTIVE: To evaluate hemodynamic changes with the use of 4% articaine and 2 different concentrations of epinephrine (1:100,000 and 1:200,000) in the surgical removal of symmetrically positioned lower third molars. STUDY DESIGN: A prospective, randomized, double-blind clinical trial was carried out involving 42 patients each undergoing 2 surgeries on separate ...
Xu G - - 2012
The purpose of this study was to evaluate the efficacy and safety of Cilnidipine tablets to treat Chinese patients with mild to moderate essential hypertension, and to examine the ability of Cilnidipine to lower blood pressure without eliciting unfavorable side effects. Medical databases and review articles were screened for randomized ...
Revay Edita E - - 2012
We conducted a study to determine the degree of personal protection provided by the Terminix® ALLCLEAR® Mosquito Mister-Lantern Edition. This outdoor unit was operated to disperse an aerosolized aqueous 0.3% geraniol emulsion in timed-release intervals of 5.0, 7.5, and 10.0min. Human volunteers participated in landing catch experiments to test the ...
Luo Bin - - 2012
The purpose of this study is to explore possible potential implications of cold air in cardiovascular disease (CVD) risk in rats. Healthy Wistar rats were exposed to artificial cold air under laboratory conditions, and their systolic blood pressure, heart rate, vasoconstriction, CVD risk factors, and myocardial damage indicators after cold ...
Oberleithner Hans - - 2012
About one third of the population worldwide is supposed to be salt sensitive which is a major cause for arterial hypertension later in life. For preventive actions it is thus desirable to identify salt-sensitive individuals before the appearance of clinical symptoms. Recent observations suggest that the vascular endothelium consists of ...
Wu Ming-Shiou - - 2012
Left ventricular (LV) relaxation is influenced by vascular loads imposed on the heart. The current study investigated the influence of the timing and magnitude of arterial wave reflection on LV isovolumic pressure relaxation, with a specific focus on the aging process. Fisher 344 rats aged 6, 18, and 24months were ...
Isgrò S - - 2012
Background: to assess the performance of different expiratory valves and the resistance of helmet outlet ports at increasing gas flow rates. Methods: a gas flow-meter was connected to 10 different expiratory peep valves: 1 water-seal valve, 4 precalibrated fixed PEEP valves and 5 adjustable PEEP valves. Three new valves of ...
Farkas Katalin - - 2012
AIMS:: Peripheral arterial disease (PAD) can be diagnosed in asymptomatic stage, measuring ankle-brachial index (ABI). Low ABI is an indicator of increased cardiovascular risk and its inclusion to traditional risk factors can improve risk prediction. The objective of the present cross-sectional part of our large-scale, multicenter, observational study was to ...
Wang Ningli - - 2012
Low cerebrospinal fluid pressure (CSF-P) may be involved in the pathogenesis of glaucoma. We measured the optic nerve subarachnoid space width (ONSASW) as a surrogate for orbital CSF-P in patients with primary open-angle glaucoma (POAG) with normal and high pressure and a control group. Prospective observational study. The study included ...
Peebles K C - - 2012
Although the cerebrovasculature is known to be exquisitely sensitive to CO(2), there is no consensus on whether the sympathetic nervous system plays a role in regulating cerebrovascular responses to changes in arterial CO(2). To address this question, we investigated human cerebrovascular CO(2) reactivity in healthy participants randomly assigned to the ...
Eguchi Kazuo K Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine, Tochigi, Japan. - - 2012
Visit-to-visit blood pressure variability (BPV) has been shown to be a prognostic indicator in hypertensive patients. We designed this study to clarify the impacts of clinic and ambulatory BPV in predicting cardiovascular disease (CVD). We performed ambulatory BP monitoring (ABPM) in 457 hypertensive patients. Visit-to-visit BPV and ambulatory BPV were ...
Delcourt Candice - - 2012
OBJECTIVE:Uncertainty exists over the size of potential beneficial effects of medical treatments targeting hematoma growth in intracerebral hemorrhage (ICH). We report associations of hematoma growth parameters on clinical outcomes in the pilot phase, Intensive Blood Pressure Reduction in Acute Cerebral Hemorrhage Trial (INTERACT1) (ClinicalTrials.gov NCT00226096). METHODS:In randomized patients with both ...
Meimoun Patrick - - 2012
BACKGROUND: Coronary flow reserve (CFR) is progressively impaired with aortic stenosis (AS) severity. However, there is a broad range of CFR in patients with severe AS, and the factors responsible for this variability are weakly characterized. The aim of this study was to assess the correlates of noninvasive CFR in ...
Martinez-Gómez David - - 2012
BACKGROUND AND OBJECTIVE: We aimed to examine the association of video games playing time with cardiometabolic risk biomarkers in adolescents. SUBJECTS AND METHODS: This study comprised 181 adolescents (88 girls), aged 13- to 17 years old. Moderate-to-vigorous physical activity (MVPA) was measured by accelerometry, and video game playing time in ...
Jamshidi Nima - - 2012
In this research kinematics parameters derived from ground reaction forces were evaluated to limit differential diagnoses and measure the degree of disabilities during walking among neuropathic subjects. 25 neuropathic subjects affected by drop foot and 20 normal subjects were enrolled in the study. Each subject was tested in average 10±2 ...
Amathieu R - - 2012
BACKGROUND: /st>Because recovery of an efficient swallowing reflex is a determining factor for the recovery of airway protective reflexes, we have studied the influence of the tracheostomy tube cuff pressure (CP) on the swallowing reflex in tracheotomized patients. METHODS: /st>Twelve conscious adult intensive care unit (ICU) patients who had been ...
Höfelmann Doroteia A - - 2012
This population-based health survey was carried out in Florianopolis, Brazil, to assess the association between adult systolic blood pressure (SBP) and contextual income level, after controlling for potential individual-level confounders. A statistically significant negative association between SBP levels and contextual income was identified after adjusting for individual-level characteristics. SBP levels ...
Kuroki Kenji - - 2012
Aim Frequent ventricular premature contractions (VPCs) may cause haemodynamic deterioration and reversible left ventricular (LV) dysfunction. We aimed to clarify this mechanism. The haemodynamics, echocardiographic parameters, and plasma brain natriuretic peptide (BNP) level were assessed in 31 patients with idiopathic, frequent VPCs undergoing radiofrequency catheter ablation. The patients were classified ...
Weber Ralph R Department of Neurology, University Duisburg-Essen, Hufelandstr. 55, 45122 Essen, - - 2012
High blood pressure is one of the main risk factors for cerebral white matter lesions (WMLs). There is limited evidence from one randomized trial that blood pressure-lowering is able to slow WML progression. We investigated whether telmisartan prevents WML progression in the imaging substudy of the Prevention Regimen for Effectively ...
Friedman Kevin G KG Department of Cardiology, Children's Hospital Boston and Harvard Medical School, Boston, MA 02115, USA. - - 2012
In congenital aortic stenosis, chronic pressure load has detrimental effects on left ventricular (LV) systolic and diastolic function. Reduction in LV pressure load with balloon aortic valvuloplasty (BAVP) may improve diastolic function. Echocardiographic and catheterization data for 25 consecutive patients undergoing BAVP for congenital aortic stenosis were retrospectively analyzed. Median ...
Lee Wesley L - - 2012
OBJECTIVES: To compare in vitro physical and mechanical characteristics of 1-layer and 2-layer end-to-end jejunoileostomy. STUDY DESIGN: In vitro experimental study. ANIMALS: Adult horses (n = 6). METHODS: Harvested equine jejunum and ileum was used to create 1- and 2-layer end-to-end jejunoileostomy specimens. Construction time, bursting pressure, and relative lumen ...
Lurbe Empar - - 2012
The objective was to analyze pulse wave velocity (PWV) in normotensive, high-normal, and hypertensive youths by using aortic-derived parameters from peripheral recordings. The impact of obesity on vascular phenotypes was also analyzed. A total of 501 whites from 8 to 18 years of age were included. The subjects were divided ...
López-Andrés Natalia - - 2012
Cardiotrophin 1 (CT-1), a cytokine belonging to the interleukin 6 family, is increased in hypertension and in heart failure. We aimed to study the precise role of CT-1 on cardiac, vascular, and renal function; morphology; and remodeling in early stages without hypertension. CT-1 (20 μg/kg per day) or vehicle was ...
Sunshine Sarah B - - 2012
Antiangiogenesis therapy has become a vital part of the armamentarium against cancer. Hypertension is a dose-limiting toxicity for VEGF inhibitors. Thus, there is a pressing need to address the associated adverse events so these agents can be better used. The hypertension may be mediated by reduced NO bioavailability resulting from ...
Antoniou Theofani - - 2012
BACKGROUND: Pulmonary hypertension and right ventricular (RV) dysfunction may complicate the implantation of a left ventricular assist device (LVAD). We examined whether inhaled vasodilators can sufficiently reduce RV afterload, avoiding the need for temporary RV mechanical support. METHODS: The study includes 7 patients with RV dysfunction after LVAD insertion. Treatment ...
Jørgensen Lise Pyndt - - 2012
OBJECTIVE: To validate micro-lightguide spectrophotometry (O2C) in patients with lower limb ischemia and to compare results with those obtained from toe blood pressure. METHODS: We prospectively examined 59 patients, 24 of whom complained of claudication, 31 had critical ischemia, and four were asymptomatic. Diabetes was present in 19 (32%) patients. ...
Heesen M - - 2012
BACKGROUND: Remifentanil has been suggested for the induction of general anaesthesia for caesarean section. We aimed to define remifentanil effects on maternal stress response as well as neonatal effects. METHODS: Relevant articles were retrieved by a systematic literature search. Randomized, controlled trials comparing remifentanil use before delivery with placebo were ...
Pataky Todd C - - 2012
Plantar pressures are typically measured using sensors of finite area, so the accuracy with which one can measure true maximum pressure is dependent on sensor size. Measurement accuracy has been modeled previously for one patient's metatarsals (Lord, 1997), but has not been modeled either for general subjects or for other ...
Lv Jungang - - 2012
  Pressure-sensitive tape is often used to bind explosive devices. It can become important trace evidence in many cases. Three types of calcium carbonate (heavy, light, and active CaCO(3) ), which were widely used as additives in pressure-sensitive tape substrate, were analyzed with Fourier transform infrared spectroscopy (FTIR) in this ...
Bektas Rima N - - 2012
Objective  To evaluate the accuracy of a new cardiac output monitor (FloTrac/Vigileo), originally designed for humans, in dogs. This pulse contour cardiac output monitoring system cannot be calibrated and measures cardiac output (Q̇t) from a standard arterial catheter. Study design  Prospective experimental trial. Animals  Eight adult Beagle dogs weighing 13.1 ...
Winkes Michiel B - - 2012
BACKGROUND:Results of surgery for chronic exertional compartment syndrome (CECS) of the lower leg deep posterior compartment are inferior compared with other types of CECS. Factors predicting success after surgery are unknown. PURPOSE:To study the prognostic value of preoperative compartmental pressure curves in patients receiving surgery for deep posterior compartment CECS. ...
Stockman Jonathan - - 2012
Objective  To evaluate the physiological effect and response to noxious stimulation at five concentrations of MS-222 in koi (Cyprinus carpio). Study design  Prospective experimental study. Animals  Twenty-one healthy adult unknown sex koi fish weighing mean 450 ± SD 120 g. Methods  Each fish was exposed to five different concentrations of MS-222 (50, 70, ...
Zocco D A - - 2012
We present measurements of the temperature dependence of the electrical resistivity ρ(T) of CeRhSn up to ∼27 kbar. At low temperatures, ρ(T) varies linearly with T for all pressures, indicating non-Fermi liquid behavior. Below T(f) ∼ 6 K, ρ(T) deviates from a linear dependence. We found that the low-T feature centered at T = T(f) shows ...
Liu Cai-Long - - 2012
An accurate in situ electrical resistivity measurement of cuprous oxide cubes has been conducted in a diamond anvil cell at room temperature with pressures up to 25 GPa. The abnormal electrical resistivity variation found at 0.7-2.2 GPa is attributed to the phase transformation from a cubic to a tetragonal structure. ...
Ferguson Lee P - - 2012
BACKGROUND: Observational studies in adults have shown worse outcome associated with hyperoxia following resuscitation from cardiac arrest. Extrapolating from adult data, current pediatric resuscitation guidelines recommend avoiding hyperoxia. We investigated the relationship between arterial partial oxygen pressure and survival in patients admitted to the pediatric intensive care unit (PICU) following ...
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